Sidite Solar, Solar Water Heater, Solar Collector, Solar Panels

2018年5月6日星期日

PARABOLIC TROUGH COLLECTOR PRODUCTION LINE SHIPPED TO CHINA

Absolicon, a Swedish supplier of concentrating solar thermal technology, has recently delivered its first production line to a Chinese company. The equipment to manufacture parabolic trough collectors, which the Swedish business developed in-house, arrived in China in mid-April. The line is now being set up at Heli New Energy Technology, in the country’s southwestern province of Sichuan. The photo, which dates from December 2016, shows the partners involved in the project after they signed the purchase agreement for the system. Heli New Energy is a joint venture between two Chinese companies, namely Xinkun, a family-owned manufacturer, and Jointeam, an energy project developer.

Photo: Absolicon

As part of the joint venture, Xinkun will be responsible for producing the collectors and managing logistics, while Jointeam will be in charge of sales and project development. “We will assist our Chinese customers in scaling up production and engineering initial projects,” Joakim Byström, CEO of Absolicon, said. The deal comes at a time when the Chinese government has established the ambitious target of generating 10 % of industrial heat via solar thermal energy by 2020.

One collector every 6 minutes

“Our business idea is to offer interested companies from around the world complete production lines, including robots, that provide a yearly capacity of around 100,000 m² of glazed parabolic trough collectors, type T160,” Byström (third from left) said. The sales contract with Heli New Energy was valued at around EUR 2.5 million and included 400 m² of prefabricated solar collector area for use in demonstration plants.

Byström is planning to put the money generated from these sales into the construction of a completely automated and enhanced collector production line at Absolicon’s headquarters in Härnösand, Sweden. “It will enable us to manufacture one 5.5 m² T160 every 6 minutes. The installation will be a showcase for new customers who are interested in purchasing a T160 production line,” the CEO explained. “Outside Europe, we have started looking for manufacturing partners in Botswana, Chile, Egypt, India, Kenya, Mexico, Morocco and South Africa.”

A 270 m² solar district heating plant commissioned for installation in Sollefteå, Sweden, in 2012

Photo: Absolicon

The T160 collector has seen continuous improvements in performance and costs over several years. The parabolic trough system is covered by 4 mm of hardened glass to protect the mirror from dust and soiling. The receiver is also beneath a glass cover, which removes the need for evacuating it to attain good thermal performance. The collector is installed in sets of four modules. They have an aperture area of 22 m² each and share a control system to cut costs.

The T160 has been designed for district heating and industrial heat systems operating at temperatures of up to 160 °C. Collector tests at the laboratory of the Swiss-based SPF – Institute of Solar Technology last summer showed a 76.6 % optical efficiency. The manufacturer said that the good value had been the result of several improvements. Not only had the optical shape been optimised, but the reflectance of the mirror had been increased to 95.5 %, while the tracking accuracy had been fine-tuned to 0.1°. The company expects the Solar Keymark certificate to arrive this June.

Organisations mentioned in this article:

http://www.absolicon.com

http://www.jointeam6.com/

http://www.scxinkun.com/en/index.asp

http://www.sidite-solar.com/category_3_Splitsolarwaterheater.html

SIDITE Solar:
China Manufacturer;
Solar Water Heater, Solar Collector;

Zhejiang Sidite New Energy Co.,Ltd.

China manufacturer, Solar water heater, solar hot water, solar hot water heater, solar water heater system, heat pipe solar water heater, pressured solar water heater, flat panel solar water heater, solar collector, solar thermal collector, vacuum tube solar collector, evacuated tube solar collector, solar panels.

Web: www.chinasidite.com
Tel: 0086-573-83224422 / 83225522
Fax: 0086-573-83225533
E-mail: sdt01@sidite.com

2018年5月1日星期二

123TH CANTON FAIR--SOLAR WATER HEATER BUSINESS

On 15th-19th,May,2018, Zhejiang Sidite New Energy Co.,ltd attend the 123th Canton Fair in Guangdong province,China; This fair was held twice a year in China.

At this fair, Sidite Solar Main show the new type solar tank in tank solar water heater and Inmetro certification for brazil market;

It receive many good feedbacks, hope we will can get a succucess result;

http://www.sidite-solar.com/category_3_Splitsolarwaterheater.html

SIDITE Solar:
China Manufacturer;
Solar Water Heater, Solar Collector;

Zhejiang Sidite New Energy Co.,Ltd.

SECOND WINTER FOR 75,000 M² SDH HEATING SYSTEM IN INNER MONGOLIA

Since October 2016, a 75,000 m² parabolic trough collector field for district heat seems to have been operating in Inner Mongolia, an autonomous region in China. Ruicheng Zheng from the China Academy of Building Research and Hongzhi Cheng said that they had heard about the system, but that all the information on it was only available online. On 28 December 2017, a news article appeared on sohu.com, one of China’s largest online media companies, stating that the system supplied a shopping centre and a development project known as ZhongCheng International City in the village of HongQing De, near Baotou. The journalist who interviewed the owners of the residential buildings and the shopping centre found customers satisfied with the solar space heating that the system provides.

Photo: Sohu.com

During a public tender, Chinese-based turnkey supplier Inner Mongolia XuChen Energy was said to have been awarded the contract to install the solar field. The official company register shows that the business was founded in April 2016, but that it does not yet have its own website.

According to the sohu.com article, the system’s parabolic trough collectors heat up thermal oil to provide solar energy for a district heating network. The backup installation consists of nine 5,700 m³ water tanks. In the article, Canghou Lin, the manager in charge of the collector system at Inner Mongolia XuChen Energy, explained that the huge storage capacity could meet the heat demand of grid-connected users for a full seven days in cloudy weather.

Wang Yu, General Manager of Inner Mongolia XuChen Energy, was quoted as saying that the company had investigated several of the world’s advanced solar thermal technologies to fill the gap in domestic solar thermal heating. “Next year, the second phase will officially begin with a concentrating collector field of 300 mu to supply projects in the tourism sector,” he added. 300 mu corresponds to 200,000 m² of collector aperture area.

In an interview with sohu.com, Zhang Bo Tao, Deputy General Manager of the solar-heated shopping centre ZhongCheng Outlets Real Estate, said in December 2017: “This has already been the second heating season. The heating system has been reliable and works well. It can maintain an average temperature of around 20 °C in the shopping centre and one of around 25 °C in the residential buildings.”

The article was written in cooperation with Liping Jiang an expert in solar thermal and a member of solrico’s partner network.

More information:

http://www.sohu.com/a/213578279_99931482

http://www.sidite-solar.com/category_3_Splitsolarwaterheater.html

SIDITE Solar:
China Manufacturer;
Solar Water Heater, Solar Collector;

Zhejiang Sidite New Energy Co.,Ltd.

SWEDEN: PIONEER OF SOLAR DISTRICT HEATING

When it comes to district heating, Sweden has made the switch from fossil fuels to biomass and waste heat (see chart). As early as 2015, biomass provided 46 % of the energy in district heating networks across the country, followed by 24 % from waste incineration and 8 % from industrial excess heat. Fossil fuels came only to about 7 % of the around 175 petajoules, or PJ, produced in Sweden in 2015 (latest data available). These percentages, and the chart, were taken from a 2017 paper titled District heating and cooling in Sweden, written by Sven Werner, Professor Emeritus at Halmstad University, Sweden.

Chart: Sven Werner

All Swedish cities and most smaller urban areas have their own district heating (DH) network, with the current total standing at about 500. For example, in the county of Västra Götaland alone, there are more than 100 bioenergy DH systems, according to the EU project SDHp2m.

In his paper, Werner writes that the first Swedish district heating system was introduced in the form of a combined heat and power plant in Karlstad in 1948. It was an oil-fired plant, used to complement the energy supply provided by hydroelectric systems after the war. The latest available data from 2014 shows that district heating met around 55 % of total demand. The proportion was 89 % regarding multi-family property and 80 % for service sector buildings, whereas it was only 17 % for single-family homes.

No. of DH networks	500
DH-supplied heat	175 PJ
Single-family homes	17 %
Multi-family property	89 %
Service sector buildings	80 %

Key figures on the proportion of DH-connected systems in Sweden in 2014

Source: Werner, Sven. District heating and cooling in Sweden. Energy 126 (2017): 419-429.

Solar district heating pioneer

Sweden was the global leader in large solar district heating (SDH) installations from 1970 to 1995. The first-ever ground-mounted SDH system was a 2,000 m² collector field operated by Östersund Energi in Torvalla between 1982 and 1992. The second was a 4,320 m² collector plant run by Uppsala Energi in Lyckebo from 1983 to 2001 and the third a 7,500 m² collector field operated by Telge Energi in Nykvarn between 1984 and 2008.

Altogether, Sweden has seen the installation of 37 large-scale solar thermal systems. As many as 12 of them are no longer in operation. Today, there are 25 operational installations above 500 m², according to the statistics by Jan-Olof Dalenbäck, Professor at Chalmers University of Technology, Sweden, at a total of 34,000 m² or 24 MWth.

Key challenges: Lack of support and know-how

Despite Sweden having been one of the first countries to develop large-scale solar plants, the market for the technology slowed over the last years because of a notable increase in the use of both biomass and waste heat. These sources of energy are rather cheap, as they are available locally in large amounts. In addition, the country has no specific support programmes in place, for neither DH nor solar thermal.

Research conducted as part of the SDHp2m project has shown one key barrier to be the lack of experience which utility staff has in operating DH systems. The EU project prompted several feasibility studies across Västra Götaland County. Their aim was to evaluate the connection of small wood chip or briquette boilers of between 4 and 30 MW to SDH systems and additional heat storage. Dalenbäck presented the results of three of these studies during the 5th International Solar District Heating Conference in Graz, Austria, in early April. The heat costs of the solar collector fields measuring between 3,000 m² and 5,000 m² and the buffer tanks holding between 300 m³ and 500 m³ ranged from 450 to 500 SEK/MWh (43.5 to 48 EUR/MWh), which means that they were 30 to 50 % higher than the typical operating costs of plants using wood chips.

Even the national carbon tax, which is currently at around EUR 117 for every tonne of carbon dioxide, has no positive impact on Sweden’s solar heating market these days. The energy sources which compete with solar thermal for market shares are not fossil fuels but heat pumps and bioenergy.

This article was written by Riccardo Battisti, a solar thermal consultant and market researcher working at Ambiente Italia (Rome, Italy).

Organisations mentioned in this article:

Chalmers University of Technology: http://www.chalmers.se/en/Pages/default.aspx

Halmstad University: http://www.hh.se/en-US/5.html

SDHp2m project in Sweden: http://solar-district-heating.se

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SIDITE Solar:
China Manufacturer;
Solar Water Heater, Solar Collector;

Zhejiang Sidite New Energy Co.,Ltd.

“CONTRACT MARKET FLUCTUATES FROM YEAR TO YEAR”

2017 was a difficult year for solar district heating supplier Arcon-Sunmark based in Denmark. The collector manufacturer’s turnover dropped from Danish Krone (DKK) 457 million, or USD 75 million, to DKK 98 million, or USD 16.2 million, according to a press release published on 21 March 2018. The uncertain country’s energy policy caused a delay in the launch of new SDH projects in the second half of 2016. Consequently, pre-tax profit went from DKK 46 million (USD 7.6 million) in 2016 to minus DKK 99 million (USD 16.3 million) in 2017. “We have made the necessary adjustments. At the same time, we have invested in retaining the clear market leader position that we achieved over the years,” Ole Dalby, CEO of Arcon-Sunmark (see photo), said.

In 2017, Arcon-Sunmark installed only two new solar district heating systems in Denmark, in Øster Brønderslev and Vivild, and expanded three others, bringing the total to 26,536 m² (18.6 MW_th) of collector area. In contrast, 2016 saw 495,226 m² (347 MW_th) or more than 18 times the area installed across the country. Arcon-Sunmark set up over 85 % of the total that year.

“It takes a long time to decide on and plan large-scale solar heating projects, so the late extension of the energy-saving agreement in Denmark in mid-December 2016 created a vacuum on the market,” Dalby explained the downturn in business in 2017. “But it is relatively common that the contract market fluctuates from year to year, so it is crucial to focus on expanding the business.”

Dalby replaced Søren Elisiussen as CEO of Arcon-Sunmark in August 2017. The mechanical engineer used to work at Danish-based Danfoss, where he was vice president of the heating and head of the heat pump division.

To cope with the severe drop in turnover, Arcon-Sunmark let go 20 staff in late 2016 and 16 last October. The company also closed its Danish offices in Marstal and Rudkøbing and moved all operations to its headquarters in Skørping. “We reduced our staff in production but kept the resources within ‘white collars’ to maintain competencies and be best prepared for the coming years,” Dalby explained.

The CEO is optimistic about the years ahead. In addition to Denmark, he sees Austria and Germany as potential solar district heating markets, just like Eastern Europe. Austria is of special importance to the company’s sales department, as Arcon-Sunmark has been part of the Big Solar Graz project via its Danish owner VKR Holding. Along with its partner Energie Steiermark and project developer S.O.L.I.D., the parent company is planning to set up a huge solar field of 450,000 m² and 1.8 million m³ of seasonal storage to provide energy for Graz’s district heating network. Another promising business avenue leads to China, where Arcon-Sunmark formed a joint venture with the world’s largest flat plate collector manufacturer, Sunrain Solar Energy, in June 2016. Dalby said that the new business, which had 20 staff, had signed its first contract to install a solar district heating system, including a 22,000 m² collector field and 15,000 m³ of seasonal storage, in Langkazi county in Tibet, China, this year.

Organisations mentioned in this article:

http://arcon-sunmark.com/

https://vkr-holding.com/

http://en.sunrain.com/

www.e-steiermark.com/

http://www.danfoss.dk/home/

http://www.sidite-solar.com/category_3_Splitsolarwaterheater.html

SIDITE Solar:
China Manufacturer;
Solar Water Heater, Solar Collector;

Zhejiang Sidite New Energy Co.,Ltd.

FIRST HELIOSTAT FIELD MADE IN BRAZIL

The University of São Paulo in Pirassununga (see photo) is about to get its own field of heliostats on campus. Once completed, the sea of mirrors will focus sunlight onto a receiver connected to an Organic Rankine Cycle system. The heat transfer fluid will be ambient air. The ORC turbine ‘waste’, hot water at 90 °C, will be directed to a nearby abattoir. The demonstration plant is part of SMILE, which is short for Solar-Hybrid Microturbine Systems for Cogeneration in Agro-Industrial Electricity and Heat Production.

Photo: USP

The aim of the Brazilian R&D project SMILE is to construct two industrial solar process heat systems, powered by solar energy and biofuel, that will generate both heat and electricity. In addition to the demonstration plant at the University of São Paulo, or USP for short, a second installation will be set up on a farm in Caiçara do Rio do Vento, in the northeastern state of Rio Grande do Norte. This second plant will produce steam directly in the receiver and channel it to a steam engine and a dairy.

The USP plant’s thermal receiver will have 380 kW and the Caiçara one 350 kW of capacity. The former will have a biodiesel burner installed behind the receiver to even out temperature fluctuations due to varying solar irradiation and achieve a consistent inlet temperature at the ORC turbine. The latter will use waste wood to provide a stable flow of steam.

SMILE has been co-financed by manufacturing businesses, the German Federal Ministry for the Environment, also known as BMU, and the Brazilian Development Bank, or BNDES for short. Project partners are the German Aerospace Centre, the University of Sao Paulo and Solinova, a USP spin-off which was founded in 2008 and specialises in renewable energies.

“The heliostat field is one of the key cost factors of solar tower process heat systems. This is why our aim has been a high proportion of locally manufactured components,” said Johannes Hertel, Project Manager at the German Aerospace Centre.

During the first stage in spring 2017, several local manufacturers built and delivered their prototypes of heliostat mounting systems. These prototypes were examined thoroughly, and improvements were made before USP commissioned the supplier Hydrocom, based in Paulínia, São Paulo, to deliver the structure for 73 heliostats of 9 m² each. The installation of the metal structures for the plant in Pirassununga has been finalised by the local company Alphatech, based in Limeira, São Paulo, in April 2018.

The Caiçara field, which will consist of 50 heliostats, will be produced by Metalúrgica Aço Lar based in Mossoró, in the state of Rio Grande do Norte. The company had first manufactured a heliostat prototype which was tested on the farm.

Guardian Glass, situated in Tatuí, in the state of São Paulo, will now deliver the mirrors, of which nine are required for one heliostat. They need to be bent in two axes to produce a sufficiently small focal point for the receiver.

To make local manufacturing possible, the partners decided to use what they call a ‘rim drive design,’ which is a novel, and much simpler, method to move the heliostats of both demonstration plants. It combines a half-circle steel bar with cogs and a chain drive, which means that all components can be purchased in Brazil. The design is explained in the attached paper.

Organisations mentioned in this article:

https://www.metalurgicaacolar.com/

http://www.hydrocom.com.br/

http://www.alphatech-fpa.com.br/

www.guardianbrasil.com.br/

http://www.solinova.com.br/

http://www.dlr.de/sf/en/

http://www.usp.br/green/

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SIDITE Solar:
China Manufacturer;
Solar Water Heater, Solar Collector;

Zhejiang Sidite New Energy Co.,Ltd.

SOLAR SHOWERS FOR DISPLACED PEOPLE AND REFUGEES

The UN Refugee Agency has begun ordering solar water heaters to improve the sanitary conditions in Ugandan refugee camps. The news ties in neatly with the first conference on Energy for Displaced People: A Global Plan of Action for Sustainable Energy Solutions in Situations of Displacement, an event which took place in mid-January in Berlin, Germany, and was attended by more than 100 delegates. The participants agreed to “lay the groundwork for the first-ever global, multi-stakeholder plan to ensure that crisis-affected people gain access to affordable, reliable, sustainable and modern energy services by 2030.”

One of the co-organisers was the Moving Energy Initiative, or MEI for short. MEI is a coalition of five organisations, namely Energy 4 Impact, Chatham House, Practical Action Consulting, the Norwegian Refugee Council and the UN Refugee Agency, or UNHCR for short. Together, they are assisting camp operators who offer shelter to internally displaced people and refugees in Burkina Faso, Jordan and Kenya. In these countries, sunlight is obviously the most suitable clean energy resource to power and heat the camps: Photovoltaic systems generate electricity, solar lanterns light up the night, solar cookers can be used to prepare food and solar thermal provides hot water for sanitary installations.

Joshua Masinde, Communications Officer for East Africa at Energy 4 Impact, said that MEI projects mainly deployed solar cookers and residential solar systems to generate electricity, but solar thermal was an option gaining in importance. The NRC had delivered 160 solar water heaters to homeowners who had taken in refugees in Ajloun, Irbid and Jerash in Jordan. “Our aim is to prompt private initiative when implementing clean energy projects, to help reduce the use of fossil fuels,” Masinde explained. “Regarding access to energy, we prefer local, market-based solutions which offer the chance for a livelihood.”

Oslo-based Aventa has recently shipped 80 thermosiphon systems to UNHCR to improve the hygienic conditions in 10 refugee camps in Uganda. Ingvild Skjelland, Information Director at Aventa, said that the company’s solar water heater design differed from the one of other brands. “Our solar panels are made from polymers, which eliminates the risk of corrosion. Their low weight also makes them easy to handle,” she explained. Last year, UNHCR representatives visited Aventa’s production facility in Norway and deemed its solutions suitable for their needs. “The next step is to test the feasibility of the design by pre-mounting the devices on small refugee shelters created by Edilsider, a company based in Italy,” she said.

In the years to come, solar thermal systems could be used on a much larger scale. UNHCR’s Lebanon Crisis Response Plan 2017-2020 states a target of more than 290,000 units, half of them for vulnerable Lebanese and displaced Syrians (see the attached document on p. 66). “If fully implemented, this activity would save 750,000 MWh per year,” the plan reads. It describes the USD 261 million project as a sustainable measure which will continue to provide the people of Lebanon with a renewable energy source after the displaced have returned to their home countries.

Organisations and events mentioned in this article:

United Nations High Commissioner for Refugees: http://www.unhcr.org/

Moving Energy Initiative: https://mei.chathamhouse.org/

Aventa AS: http://aventasolar.com/

http://onlinelearning.unitar.org/conference-energy-for-displaced-people/

Frank Stier is a Sofia-based freelance journalist working for print and online media as well as news agencies: www.socb.de

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SIDITE Solar:
China Manufacturer;
Solar Water Heater, Solar Collector;

Zhejiang Sidite New Energy Co.,Ltd.

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