ARANER
INTRODUCTION
Araner Group is an integrated engineering, procurement and construction (EPC) company with European origin and global presence. Its main business is implementing industrial cooling solutions. Each market is targeted with custom-made solutions; this means that there is no standard solution but an engineered design for different markets and customers.
Being an EPC contractor covers the entire spectrum of a project, from the conceptual ideas up to the delivery of the turnkey project.
The engineering headquarters are based in Madrid, Spain. This facility coordinates all the projects the company is involved in. The company has a division specialized in District Energy with an office in charge of Middle East projects due to the high demand in that area. Araner Middle East District Cooling Services LLC has been playing a key role in the market, according to industry reports from Global Market insights.[1].
Araner provides technical know-how, experience, and client orientation along with top-qualified professionals working on the most advanced engineering systems, including the improvement of power generation efficiency, district energy, environmental control, and the latest computer networking technology, to create intelligent solutions for customers, adapting the models to comply with the strictest specifications on the market.
The procurement and construction are based on the use of the latest, most sophisticated tools, equipment, and machinery, coupled with innovative project management methodology for all engineering projects. The company has built a strong reputation on delivering safe and timely projects with end-products of the highest quality.
APPLIED ENGINEERING
Large-sized projects are something that not all companies want to undertake, particularly mega-projects. These projects require a high level of engineering, financial, and management capabilities and responsibility.
ABDALI AREA – JORDAN, ASHRAE’S DISTRICT ENERGY CASE STUDY
Abdali is Amman’s[2] new downtown district that provides the Jordanian capital with a central business, social, and residential destination. Ample investment for the creation of a modern and luxury complex for the commercial and public building sector; towers, residences, business centers, and commercial areas have been developed with a total value of more than 5 billion USD.[3] Both district cooling and heating[4] were selected as the most efficient and reliable solutions for the chilled and hot water supply of the new development. The total cooling capacity was calculated to be 52,000 TR. Efficiency is a crucial parameter for these kinds of plants as the amount of energy consumed throughout the year is very high. Those requirements are typical of any district cooling plant worldwide. However, Amman has an extra handicap which introduced further challenges to this project: water availability is scarce.[5] With a 2,000 TR cooling plant, this level of water consumption is out of range, and Amman could not afford to supply it.
At the completion stage, the plant was able to provide cooling during the summer and heating during the winter, being a proper example of how a District Energy System should be implemented to be sustainable and efficient. These are the key advantages achieved over a traditional solution (cooling towers + centrifugal chillers):
- No water consumption
- Environmentally friendly
- Low operation cost
- Low maintenance cost
- Visual integration in urban areas
- Odor-free process
COOLING SOLUTIONS
DISTRICT ENERGY
District energy systems have been used in Europe since the 14th century. District cooling, for example, refers to the centralized production and distribution of cooling energy. The cooling energy is produced in a central cooling plant as chilled water and is distributed to consumers in a closed piping circuit, also referred to as a reticulation system. District heating and cooling systems are often integrated with components such as absorption chillers, cogeneration, and thermal energy storage.[6].
District energy is a proven energy solution that has been deployed for many years in a growing number of cities worldwide. It represents a diversity of technologies that seek to develop synergies between the production and supply of heat, cooling, domestic hot water, and electricity. Cities are adopting district energy systems to achieve important benefits, including: affordable energy provision; reduced reliance on energy imports and fossil fuels; community economic development and community control of energy supply; local air quality improvements; CO2 emission reductions; and an increased share of renewables in the energy mix.
THERMAL ENERGY STORAGE (TES)
Particularly speaking about chilled water systems, typically water is cooled during the night and stored for use during the day, thus extending the use of energy over a larger part of the day.
Chilled water storage can shift part of the cooling requirements to off-peak hours, resulting in improved utility load factors, in addition to allowing the chillers to operate during the cooler night temperatures, resulting in improved coefficients of performance. All existing thermal storage tanks have the same objective of maintaining the thermodynamic availability of stored energy so that it can be extracted at the same temperature at which it was stored.[7].
The use of hot water tanks is a well-known technology for thermal energy storage.[8] Hot water tanks serve the purpose of energy saving in water heating systems based on solar energy and in co-generation (heat and power) energy supply systems. State-of-the-art projects have shown that water tank storage is a cost-effective storage option and that its efficiency can be further improved by ensuring optimal water stratification in the tank and highly effective thermal insulation.
TES is currently being regulated by authorities in the Middle East as follows:
- Kuwait: Buildings with a cooling demand superior to 500 TR will mandatorily require a TES within its cooling plant.[9].
- Dubai, UAE: Any brand-new District Cooling Plant shall incorporate a TES system with at least 20% of the total design capacity.[6].
- Qatar: Every new Cooling plant with a total capacity of 10,000 TR or superior shall include a TES system.[10].
TURBINE INLET AIR COOLING (TIAC)
A turbine inlet air cooling system is a useful gas turbine option for applications where significant operation occurs in the warm months and where low relative humidities are common. The cooled air, being denser, gives the machine a higher mass flow rate and pressure ratio, resulting in an increase in turbine output and efficiency. This is a cost-effective way to add machine capacity during the period when peaking power periods are usually encountered on electric utility systems.[11].
Cooling the air at the compressor intake increases the air density and helps boost the power output. In addition, the ambient air humidity ratio plays an important role in the selection of the cooling process. Several techniques are in use together with this system, such as evaporative cooling, mechanical, absorption chillers, and/or ice thermal storage.[12].
Absorption chillers are commonly implemented along with TIAC because they can work in a combined cycle; this type of chiller reduces the electrical consumption of the power plant by consuming waste heat. They are the most efficient solution when residual heat is available.
DATA CENTER COOLING TECHNOLOGY
The growing trend toward the smart city concept and the huge amount of data that the world is continuously generating requires dedicated space to house computer data storage systems called Data Centers. In the simplest of terms, a data center is any facility that houses centralized computer and telecommunications systems.
During the 1990s, following the telecommunications boom, the term “data center” came into popular use, and as the Internet grew, some companies began building very large facilities to house all of their computing equipment. The main components of a Data Center building are the computer systems (servers), among others, that house all the data to be stored. There is an important need for continuous operation of these systems; hence, computer cooling solutions play an important role in restricting the likelihood of a possible shutdown due to heat increase.
Cooling solutions (chillers and TES Tanks) allow for the highest levels of equipment redundancy (TIER I, TIER II, TIER III, and TIER IV). TIER IV level guarantees 99.995% of hours in continuous operation during the whole year.[13].
INDUSTRIAL REFRIGERATION
Industrial refrigeration can be defined as the provision of cooling energy to large-scale processes. It embraces a wide range of temperatures, inherent to the purpose it serves, the size of the installation, the equipment’s working conditions, etc.
Industrial refrigeration systems are widely used for food and beverage production, food preservation, chemical production, and numerous other special applications in the data center cooling, construction, and manufacturing industries. Because each industrial refrigeration system is unique, system design and operation tend to be more of an art form than a science. Even though a specific refrigeration system may produce the desired result, many systems in the field are not operating at maximum efficiency. Recent concerns about electrical usage and costs have prompted many in the refrigeration industry to re-evaluate the cost-effectiveness of their system design and operating strategies.[14]
References
- ↑ "District Cooling Market Size | Global Industry Forecast 2027". Fortune Business Insights. Retrieved 2021-04-29. Unknown parameter
|url-status=ignored (help) - ↑ "District Cooling in the air in Jordan". Climate Control. Retrieved 2021-03-28.
- ↑ "Abdali - IDE Signs Contract to Establish a JOD 30 Million District Energy Plant in Abdali". abdali.jo. Retrieved 2021-04-29.
- ↑ "Review of district heating and cooling systems for a sustainable future". Renewable and Sustainable Energy Reviews. 67: 417–425. 2017-01-01. doi:10.1016/j.rser.2016.09.061. ISSN 1364-0321.
- ↑ Programme, United Nations Environment (2015). "District energy in cities: unlocking the potential of energy efficiency and renewable energy".
- ↑ 6.0 6.1 "Green Building Regulations & Specifications". Government of Dubai. Retrieved 2021-03-27. Unknown parameter
|url-status=ignored (help) - ↑ Dinçer, Ibrahim (2002). Thermal Energy Storage: Systems and Applications. John Wiley & Sons. pp. 1–262. ISBN 9780471495734. Search this book on
- ↑ Garche & Others (2013). Encyclopedia of Electrochemical Power Sources. Newnes. pp. 108–123. ISBN 9780444527455. Search this book on
- ↑ Al-Jassar, Ahmad K. (2014). Energy Conservation Program: Code of Practice. Kuwait: Ministry of Electricity & Water of Kuwait. p. 20. Search this book on
- ↑ District Cooling: Design & Water Management Code. Low Voltage Electricity & Water Installations Regulations. 2016. p. 20. Search this book on
- ↑ Gas Turbine Inlet Air Treatment. New York: GE Company. Search this book on
- ↑ Alhazmy, Majed M.; Jassim, Rahim K.; Zaki, Galal M. (2006). "Performance enhancement of gas turbines by inlet air-cooling in hot and humid climates". International Journal of Energy Research. 30 (10): 777–797. doi:10.1002/er.1184. ISSN 1099-114X.
- ↑ "What is a Data Center? | History, Design, Cooling & Types". Datamation. 2017-07-10. Retrieved 2021-04-29.
- ↑ Manske, Reindl & Klein. "Evaporative condenser control in industrial refrigeration systems" (PDF). International Journal of Refrigeration. 24: 676–691 – via Researchgate.
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