P-H diagrams in industrial refrigeration.
In industrial refrigeration, the two most important variables are the evaporation pressure and the condensation pressure. These are used to determine the cooling capacity, the compressor power, the COP and the system’s energy efficiency. Whilst analysing a screw compressor for ammonia (R-717), I found that the Pressure-Enthalpy (P-H) diagram remains an indispensable tool for validating…
𝗧𝗵𝗲𝗿𝗺𝗮𝗹 𝗟𝗼𝗮𝗱𝘀 𝗳𝗼𝗿 𝘁𝗵𝗲 𝗥𝗲𝗳𝗿𝗶𝗴𝗲𝗿𝗮𝘁𝗶𝗼𝗻 𝗦𝘆𝘀𝘁𝗲𝗺 𝗼𝗳 𝗮𝗻 𝗔𝗴𝗿𝗼-𝗶𝗻𝗱𝘂𝘀𝘁𝗿𝗶𝗮𝗹 𝗣𝗹𝗮𝗻𝘁
The calculation of thermal loads is of fundamental importance, as it determines whether fruit and/or vegetables retain their quality and whether the cold chain is maintained (blueberries, avocados, grapes, raspberries, mandarins, strawberries, cape gooseberries, asparagus, meat, fish, etc.). To protect the investment in equipment, the cold store design requires a specification sheet formally validated and…
Analysis of the Avocado Sector in Kenya
Over the past decade, the avocado industry in Kenya has undergone accelerated expansion, establishing itself as the largest producer on the African continent and a strategic pillar of the country’s agricultural exports. This momentum has seen production rise from modest levels to exceeding 585,000 tonnes in 2024, driven by the increase in cultivated area and…
The importance of detailed engineering.
Going straight from basic engineering to construction without going through detailed engineering is, in the world of industrial projects, what we would call “a blind leap into the void.” Although it may seem like you are saving time and money at first, the reality is that detailed engineering is the precise “instruction manual.” Without it,…
Analysis of the use of CO₂ in the Agro-industry
The agro-industry is one of the sectors where refrigeration is critical, not only for quality preservation, but also for food safety, operational continuity and regulatory compliance. In this context, CO₂ (R-744) is becoming established as a strategic alternative to the progressive phase-out of synthetic refrigerants (freons). From an environmental perspective, CO₂ has an ODP of…
The Evolution of Industrial Refrigeration and Environmental Commitments in Perú.
Mechanical refrigeration is based on the use of a refrigerant as a medium to extract heat from a product, an environment or an industrial process, operating through changes in pressure and temperature that allow heat to be absorbed and released within a closed cycle. Historically, the first refrigerants used were natural ones, mainly ammonia (NH₃)…
🔧 The importance of detailed engineering in the design of a refrigeration machine room.
The machine room is the heart of any industrial refrigeration system. It houses the compressors, condensers, refrigerant vessels, pumps, electrical panels and safety systems. A mistake in its design not only makes the project more expensive, but can also compromise the operation, energy efficiency, and safety of the entire plant. Therefore, detailed engineering is not…
The importance of completing the project before tendering and constructing the agro-industrial factory.
Without detailed basic engineering or detailed engineering, it is not possible to quote for a project.The actual capacity of the system (Tm/hr, m3/hr, kW, etc.) is not clearly defined.There is a risk of oversizing (higher CAPEX and OPEX) or undersizing (operational failures). The other problem is that without the engineering, it is not possible to…
The Joule-Thomson effect in the expansion valve
This occurs when a fluid is passed through a valve and its pressure decreases abruptly at constant enthalpy.During this process, there is a molecular collision and a transformation of kinetic energy into potential energy, thereby reducing the density and, with it, the number of collisions. When the molecules separate, energy is required, so this energy…
The Future of the Cold Chain and the Transformation of Frozen Foods
The freezing of food is consolidating its position as a key strategy for the sustainability of the food system and health protection. In fruits like the mango, pre-processing and freezing allow for the efficient utilisation of the fruit’s edible fraction, significantly reducing waste. While a fresh mango suffers total losses in the region of 35–40%…
Algo ha ido mal. Por favor, recarga la página y/o inténtalo de nuevo.
Follow My Blog
Get new content delivered directly to your inbox.