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Meilleures pratiquesProduct: Reciprocating compressor for subcritical CO2 application
Bitzer’s OCTAGON SL series of semi hermetic reciprocating compressors have cooling capacities ranging from 2.7 and 80 kW (–35° C/–5° C) for different subcritical applications. Bitzer’s CO2 compressors have been boasting with an efficient suction gas-cooled motor, high-quality valve plates, wear-resistant drive gears as well as adjustable capacity control since 1988. The OCTAGON SL compressor series offers improved energy efficiency, and the application limits were pushed to a higher condensing temperature whilst the admissible pressure load was expanded on the high and low-pressure side (53/30 bar). …
Meilleures pratiquesSuccess story: Air conditioning for world’s largest female-only university in Saudi Arabia
CAREL’s evaporative ChillBooster accommodates comfortable learning conditions in the world’s largest female-only university, the Princess Nora bint Abdulrahman University in Riyadh, Saudi Arabia. The ChillBooster is an evaporative cooler which cools air and lowers its average condensing pressure before the air is used by the condensing units such as chillers or dry coolers. Spontaneous evaporation is favored by the atomization of water in micrometric droplets, reducing the thermal energy required for evaporation from the surrounding air. Having opened in May 2011, the Princess Nora bint Abdulrahman University has a capacity of 50,000 students and hugely promotes female education. The ChillBooster guarantees a higher absorption ratio and less hygiene problems compared to the appliances typically used in such situations. …
Meilleures pratiquesProduct: Hydrocarbon Refrigerant
R290 and R600 …
Meilleures pratiquesProduct: pRack platform: the power of simplicity
The pRack platform designed by CAREL offers comprehensive control and management of centralized compressor racks. Combining flexibility and configurability with energy saving and system total control, the pRack is the ideal solution to respond to a variety of market requirements. The single device satisfies the needs of different size compressor racks. It is highly flexible and can adapt its operation to the type of systems and specifications of the electric panel. Moreover, pRack optimizes compressor rack operation by applying available modulation devices, as well as control and rotation algorithms to stabilize operation pressure. …
Meilleures pratiquesProduct: CIRCE Biomass Trigeneration
Direct fired biomass absorption cooling unit Biomass trigeneration allows for combined cooling, heating and power generation. Using solid biofuels on a small scale decentralizes biomass consumption and decreases logistical issues. An environmentally-friendly option for buildings where the heating needs are higher than the cooling demand. …
Meilleures pratiquesTraining: Training workshop for ice machine makers
August 2015: In supporting the implementation of the Hydrofluorocarbon Phase-Out Management Plan (HPMP) in Nigeria, the National Ozone Office (NOO) together with the United Nations Industrial Development Organization (UNIDO) organized a training for ice machine makers on the installation and maintenance of low pressure foaming machines. The training was held in Abuja on August 11th and 12th, and in Ibadan on August 27th and 28th. The NOO of the Federal Ministry of Environment inaugurated the trainings for ice machine makers under HPMP Stage I. The training in 2015 was so successful that another one was held in June 2017. HPMP Stage I has been successfully completed and Stag II is well under way. Under the Kigali Amendment to the Montreal Protocol, Nigeria, as every other developing country, has committed to completely phasing out hydrofluorocarbons (HFCs) by 2040. The year 2009/2010 is used a baseline, with a 10% phase out by 2015, a 35% phase out by 2020 and a 67.5% phase out by 2025. …
Meilleures pratiquesPolicymaking: ATMOsphere: The business case for natural refrigerants
Organized and hosted by Shecco, ATMOsphere are a series of international annual events bringing together stakeholders involved in natural refrigerant-based technologies. Since 2009, 30 ATMOsphere events have taken place in Europe, Asia, Australia and America. ATMOsphere events assemble key industrial, public and political stakeholders, as well as end-users to discuss natural refrigerant-based technologies. The event uses market trends and regulatory sessions, consumer and supplier panels, technology case studies, workshops and networking opportunities to explore and promote the business case for natural refrigerants. …
Meilleures pratiquesSuccess story: CO2/ammonia cascade systems
Research and Training Platform using natural refrigerants with particular emphasis being laid on the use of CO2 as refrigerant. A research and training platform using CO2 as refrigerant has been installed at the Université des Mascareignes in Mauritius. This project has been financed through the HPMP (HCFC Phase Out Management Plan) for Mauritius through the Ministry of Environment. The system has been designed to operate in three different modes: Ammonia in direction expansion, a Cascade CO2 operation with Ammonia Cooling the CO2 and CO2 in transcritical mode. The system is completely instrumented with temperature and pressure sensors as well as flow meters to enable trainees to do different kinds of manipulations. …
Meilleures pratiquesPolicymaking: The Natural Voice- A global call to reduce greenhouse gases by natural refrigerants
Introduced by Shecco in 2009, the Natural Voice is a global statement open to industry, associations, non-profit organizations and individuals supporting the potential of natural refrigerants in replacing potent greenhouse gases. At present, the Natural Voice has 109 signatories from a range of sectors and industries. The statement will be presented to national governments and international climate negotiators in the near future to build the basis for developing natural refrigerant initiatives around the world. The Natural Voice demands national governments to remove (inter)national trade barriers and to revise safety standards, codes and legislation that restrict the use of natural refrigerants without merit. Furthermore, it calls upon national governments to provide (non-) financial support for the research and promotion of natural refrigerants, and to facilitate the technology transfer from developed to developing countries. …
Meilleures pratiquesPolicymaking: National HCFC phase out management plan
In order to achieve a 65% reduction of HCFCs by 2025, the Bangladesh Department of Environment (DoE) is planning Stage 2 of its HCFC Phase-Out Management Plan (HPMP), funded by the Multilateral Fund. Bangladesh’s HPMP Stage 1 includes an investment component and a technician and customs training component. An 18% reduction in HCFCs after the successful completion of Stage 1 by the end of 2017 is expected, after which HPMP Stage 2 will commence. To achieve the 35% phase-out target in 2020 and in preparation for the 65% target by 2025, set forward in the Kigali Amendment to the Montreal Protocol, the DoE is currently preparing HPMP Stage 2. As a signatory to the Vienna Convention and the Montreal Protocol, Bangladesh inaugurated its Country Programme to phase-out the consumption of Ozone Depleting Substances (ODS) in 1994, with the formation of the National Ozone Unit in 1996. The Country Programme proposed the introduction of regulatory measures, spreading awareness and information as well as training and funding for technological conversions to comply with the country’s climate goals. …