Main menu
Search results
Search in FRIDOC
36 results
Transient heat transfer models of wellbore and formation systems during the drilling process under well kick conditions in the bottom-hole.
Recommended by the IIR
Advances in the determination of the thermal ground properties for the design of borehole heat exchangers using thermal response tests.
Numerical analysis of energy and entransy regarding vertical borehole heat exchangers in ground-source heat pump systems.
IIR document
Investigation on the heat transfer performance of a novel composite energy geo-structure with energy piles and boreholes.
Research and analysis on influence factors of accuracy of geotechnical thermal response test.
Pompes à chaleur géothermiques : les opérations de forage et limites de prestations.
Geothermal heat pumps: drilling operations and performance limitations.
Borehole installations or air to water heat pumps. What to use and where.
Performance analysis of ground source heat pump system with vertical borehole heat exchangers affected by rapid groundwater flow.
Estimating the subsurface thermal conductivity and its uncertainty for shallow geothermal energy use— A workflow and geoportal based on publicly available data.
Adaptation of the B2G dynamic model to new borehole heat exchanger coaxial configurations.
Geothermal Heat Pump Production Sustainability—The Basis of the Swiss GHP Success Story.
Investigation of the Heat Transfer Performance of Multi-Borehole Double-Pipe Heat Exchangers in Medium-Shallow Strata.
Improvement of efficiency of a geothermal heat pump installation.
Numerical study on the long-term performance and load imbalance ratio for medium-shallow borehole heat exchanger system.
Thermal performance of underground heat exchanger for ground source heat pump that uses direct expansion method.
Refrigeration sector monitoring
7 results
Efficiency of ground source heat pump systems
Ground source heat pumps (GHSP) have been reported to be more efficient than more widespread air source heat pumps despite higher installation costs. A recent article has reviewed parameters impacting the energy...
Reducing the economic costs of a direct-use geothermal heating system
Italian researchers have modelled a polymer heat exchanger to reduce the cost of a direct-use geothermal heating system for a single building in the active volcano district of the...
The high potential of ground-source heat pumps to decarbonise the European building sector
A potential reduction of 20-40% and 30-50% of energy demand in buildings, for heating and cooling respectively, could be achieved through increased use of geothermal heat pumps.
India seeks New Zealand’s help for developing cold storages
India has sought expertise from New Zealand in development of cold storages in the country, where fruits and vegetables go waste every year due to inadequate storage infrastructure.
Heat pump sales grew in Europe in 2020
According to the latest market report by European Heat Pump Association (EHPA), heat pump sales grew by +7.4% in 2020, offering benefits both in terms of greenhouse gas emission...
A low charge direct expansion evaporator system configured to use less ammonia
A US-based meat processor operates a cold storage facility that uses just 1 kg approx ammonia per kW.
Briefs: Energy-efficient district cooling in Paris
The chilled-water urban cooling network in Paris, run by Climespace is made up of 6 plants and chilled water storage systems, with a 250 MW total refrigerating capacity and distribution temperatures from 0.5°C-4°C. Two different technical...
Encyclopedia of Refrigeration
5 results
Cryogenic nitrogen in the food and beverage industry
The adoption of cryogenic processes in the food and beverage industry is predominantly driven by liquid nitrogen (LIN), and it is the preferred candidate for food chilling and...
Cold storage conditions for fruits and vegetables
Practical recommendations for the cold storage of over 200 cultivars of fruits, vegetables and herbs (storage temperatures, relative humidity, storage time, controlled atmosphere...
Ice cream manufacturing, environmental impact and market data
From a physico-chemical point of view, ice cream is a complex, frozen multiphase mixture. The manufacturing process includes several stages of freezing which are described in this...
Liquefied Natural Gas: production process and cold energy recovery
Liquefied natural gas (LNG) is natural gas that has been cooled to about -160 °C and turned into a liquid to facilitate transportation and storage. A typical LNG supply chain...
Additive manufacturing of heat exchangers
In the refrigeration industry, additive manufacturing (colloquially referred to as “3D printing”) makes it possible to fabricate novel, complex and potentially more energy efficient...
