Best practice examples

HEAT regularly applies a sectoral approach when striving to reduce emissions. Greenhouse gas (GHG) emissions inventories, low-carbon roadmaps and real-life pilot projects can effectively support sector transformation and low-carbon strategies. Aiming at the reduction of emissions from refrigerated transport in South Africa, HEAT supported the GIZ project Mitigating Emissions in the Transport Refrigeration Sector in South Africa in 2013-2017, funded by the Federal Ministry of the Environment, Nature Conservation and Nuclear Safety (BMU). HEAT identified measures to reduce emissions from refrigerated transport in trucks. The switch to natural refrigerant-based cooling systems and increased efficiency of those systems led to less direct emissions from the refrigerants and less indirect emissions from diesel to operate the equipment. Together with Transfrig, the leading local manufacturer, our experts developed and tested prototypes of climate-friendly refrigeration systems with 30% less energy consumption. Contribution to climate resilience: An improved cold chain leads to better food security and less health risks associated with perishable food. Optimized logistics and more efficient refrigeration systems cause less air pollution than conventional systems. Working with local companies regarding innovative technologies enhances vocational training, job opportunities and supports local operators and technology providers in their efforts to “green” their business. Moreover, the sector strategy introduced Measuring, Reporting and Verification (MRV) system procedures that can also be applied in other sectors. …

Vaccine refrigerator …

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. …

Frigo-Consulting has installed an integral CO2 system in retail giant Kaufland’s new large-scale store in the suburbs of Germany, Berlin. The integral CO2 system is a lighthouse project, as it cools, heats and ventilates without needing additional energy. It uses waste heat produced during refrigeration to heat and ventilate the entire Kaufland building. 25-30% less energy is consumed compared to traditional installations, as well as a reduction of the CO2 footprint by 35-40%. The system can adapt to a range of operation needs, e.g. summer vs. winter temperature, working days vs. weekends, etc. Frigo-Consulting took the lead in the project engineering and provided a customized future oriented concept. Since the first installation in 2014, Frigo-Consulting has successfully engineered and commissioned several integral 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. …

In November 2015, Walton launched a new line of refrigerators that run on the natural refrigerant isobutane. The project was supported by the United Nations Development Programme under Bangladesh’s national HCFC phase-out management plan (HPMP). The market transition to green cooling technologies will avoid 65 MT of HCFC-134a emissions annually, as well as savings of about 14 million kWH annually. The project was successfully completed by the end of 2016, and was implemented in a cost-effective and safe manner. …

Fresnel-solar Cooling system for industrial facility in Jordan Industrial Solar GmbH provided a Fresnel collector field with a total capacity of 700 kW(th) to an industrial facility in Jordan. Besides process heating the solar steam also powers a double effect absorption chiller which is directly connected to the central cold supply of the facility. …

Johannesburg, February 2016- Commercial Refrigeration Services (CRS) has opened the first ever CO2 training facility and showroom in South Africa. The new facility is used to train local technicians and contractors on installing and maintaining CO2 systems. Groenwald, CRS’ head of engineering, manufacturing and installations said that “knowledge and experience are the barriers standing between CO2 refrigeration applications becoming the mainstream solution for the African market”. The readily accessible CO2 facility in Johannesburg is helping local technicians to understand the climate-friendly and energy-efficient efficient alternative refrigerant. The facility resembles a small supermarket with three different CO2 refrigeration systems: a booster system, a booster system with parallel compression and a booster system with parallel compression and an ejector. By measuring and analyzing the energy consumption by the different types of systems, CRS may demonstrate to the end users the monetary, energy and ecological benefits of each CO2 refrigeration system. …