CO2 workshop
The upcoming INDEE+ workshop will be held at the Antarim Resort in Goa. Photo credit: Tripadvisor.

INDEE+ to Hold Workshop in Goa on Decarbonizing Hotels Using CO2 Heat Pumps And Chillers

The workshop will feature a live demonstration of a hotel’s CO2 heat pump/chiller system.

INDEE+, an Indo-Norwegian initiative designed to support India’s transition to natural refrigerants, has announced it will host a two-day workshop in Goa, India, focused on decarbonizing hotels via CO2 (R744) heat pumps and chillers.

The workshop, “Hotel Decarbonization Using R744 Heat Pump/Chiller,” is scheduled for April 26–27 at the Antarim Resort. Engineers, consultants, industry workers and R&D specialists will discuss how CO2 can be effectively used in the HVAC&R industry.

INDEE+ is funded by the of the Norwegian Ministry of Foreign Affairs and features multiple partner organizations, including the Norwegian University of Science and Technology (NTNU), the Norwegian research organization SINTEF Energy Research and the Indian Institute of Technology.

Presenters from the NTNU, the Birla Institute of Technology And Science and the Indian Institute of Science in Bangalore will present on a range of specific topics. The agenda includes sessions on using heat pumps and chillers in hotels, refrigerant market trends and the path toward locally produced CO2 systems.

There will also be a live demonstration of the CO2 heat pump and chiller technology. The hotel in Goa is one of the INDEE+ project’s three demonstration sites. The two others are a fish processing facility in the coastal city of Kochi and a meat production facility in Bangalore.

NAS Fisheries, the site of the Kochi project, began using an ammonia (R717)/CO2 cascade refrigeration system in December 2023 to freeze dry shrimp and cuttlefish at temperatures of −40°C (−40°F). A study on deep freezing in the Indian fish processing industry, supported by INDEE+, found that ammonia/CO2 refrigeration systems have an annual COP that is 35% higher than that of the traditionally used R404A systems.

Additional action

In addition to INDEE+, the Indian government has also taken action to move the country away from HFCs. India ratified the Kigali Amendment in 2021, and in 2019 the country announced the India Cooling Action Plan (ICAP), which set national targets to enhance cooling efficiency and transition to alternative refrigerants. The plan aims to reduce greenhouse gas emissions with the adoption of natural refrigerants and other noble gases for ultra-low-temperature applications.

Danish manufacturer Danfoss has also contributed to the country’s move away from HFCs. The company opened a “center of excellence for green refrigerants” in Chennai in September 2021 to help develop low-GWP refrigerant technology, including CO2 and other natural refrigerants.

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