The energy solutions blog

By ARANER
Posted

When are open cycle gas turbines the right option?

With the popularity of natural gas for power generation, it is not surprising that people keep inquiring about Open Cycle Gas Turbine (OCGT) and Combined Cycle Gas Turbine (CCGT) systems. But as with all products, each of these systems has its pros and cons. The OCGT has a rather straightforward operation that starts with fresh ambient air entering the compressor and ends with power generation as shown in Figure 1 below. This simplicity gives to OCGT several advantages over CCGT. However, do not get it all wrong; this cycle has also some drawbacks that may hinder its application in certain circumstances. Considering all these facts, when are open cycle gas turbines the right option?

By ARANER
Posted

Above Ground Water Storage Tanks Or Underground: Which Is The Best Solution?

Thermal energy storage (TES) is a valuable technology for electric grid systems, district heating and district cooling applications. TES tanks incorporated into district cooling systems help shift the cooling load from on-peak hours to off-peak hours. For district heating systems, the addition of alternatives such as solar and waste heat brings a lot of value. Electric grid systems are able to not only enhance system stability, but also shave peaks.

By ARANER
Posted

Seawater Intakes System: Best Solution for District Cooling

Seawater cooled chillers are becoming more and more common for big district cooling plants close to the seashore. The high efficiency of these chillers together with a zero fresh water consumption make this technology as extremely interesting from the OPEX and environmental points of view. For sea water cooled district cooling plants, seawater intake systems are crucial in the mentioned areas. A typical seawater intake system is made up of piping, pumps, intakes, screens and channels among others. At present, two main intake systems exist: Subsurface Intakes and Open Intakes. This post presents these two alternatives, discussing the challenges associated with subsurface intakes compared to the suitability of open intakes for district cooling.

By ARANER
Posted

Screw compressor working principle and use in District Cooling

The chiller plant is one of the major systems of a district cooling plant. Others are the distribution network and the consumer system. The compressor, which is the focus of this post, is a critical component of a chiller plant. ARANER is an experienced provider of District Cooling solutions. We can be trusted with help in choosing the right compressor type for a district cooling system. We will start with the basic screw compressor working principle. The working principle of centrifugal compressor can be explained in a future publication. The compressor comes with both male and female rotors that can either drive each other or rely on a timing gear.