Select your language

Example of a project with hot and cold cooler

Ejemplo de un proyecto con enfriador frío y calor

I would like to share with you a project that has been in operation for several years with excellent results saving energy and minimizing the cost of maintenance.

by Eng. Alfredo Sotolongo*

The most economical energy to produce is the one that is saved!
In any application where air conditioning and hot water are required either for comfort or for process, this project confirms that the use of water-condensed chillers that combine cooling and heating at the same time become the ideal application. I am referring to projects such as hospitals, hotels, industries and in many cases, office buildings.

The U.S. Embassy in Santiago, Chile, as well as all Department of Foreign Affairs buildings are subject to certain regulations, especially as it relates to energy conservation and return on investment. It all starts because they had to replace a cooling tower that had been in operation for 12 years. Instead of replacing the tower, they decided to add a simultaneous cold and heat combination cooler, which represented energy savings, lower initial cost and reduction in the negative impact on the environment.

- Publicidad -

The mechanical engineer of the Department of Foreign Affairs already knew of the existence of the chiller because he had participated in a Multistack seminar where they presented the DHRC model chiller (Cooler Dedicated to Heat Recovery) that offers the following advantages:

a) Reduces Carbon Dioxide emissions.
b) It has a more economical method of heating water than the one that was in existence.
c) Redundancy when being modular. They can have full capacity coolers plus one in the most economical way possible.
d) More flexible and economical installation also because they are modular. The savings in operation allow the investment to be recovered in only three and a half years.
(e) Contribute to compliance with the energy policies of the United States Government.
f) The width of the cooler allows it to pass through doors 22" or more wide, which facilitates installation and allows future growth.

The climate of Chile is not severe neither in summer nor in winter, the DHRC cooler is very appropriate for use in this type of climate. On many occasions when the thermal cooling load increased, even in winter, as a result of electronic equipment, the embassy building needed to operate the original air condensing coolers simultaneously with the boilers which used Diesel fuel.

Under these conditions the cost of electric power and diesel fuel increased considerably. After removing the cooling towers, installing the DHRC coolers and inactivating the boiler when operating the DHRC cooler, it was possible to completely eliminate water consumption, reduce maintenance costs, consume less electrical energy and lower Carbon Dioxide emissions.

Results
- The results in the first 30 months of operation.
Total Savings = US$170,000.00
Fuel savings = 42,500 US Gallons.
Reduction in emissions = 420 Metric Tons of CO2.
- The expected results in the Life Cycle of operation.
Total Savings = US$1,280,000.00
Fuel economy = 320,000 US Gallons.
Reduction in emissions = 3,200 Metric Tons of CO2.

I am sure that there are many applications in which it is justified to analyze the possibility of applying simultaneous cold and heat chillers.

- Publicidad -

If you have an application where it is practical to use the DHRC model cooler, please contact us at the mail: [email protected]

* President of Protec, Inc., is certified as a professional engineer in Puerto Rico and the state of Florida; has more than 40 years of experience in the application and sale of systems and equipment for energy conservation. He is a member of ASME (American Society of Mechanical Engineers), AEE (Association of Energy Engineers), ASHRAE and was president of the Miami chapter of that association.

Duván Chaverra Agudelo
Duván Chaverra AgudeloEmail: [email protected]
Editor Jefe
Jefe Editorial en Latin Press, Inc,. Comunicador Social y Periodista con experiencia de más de 12 años en medios de comunicación. Apasionado por la tecnología. Director Académico del Congreso RefriAméricas.

No comments

• If you're already registered, please log in first. Your email will not be published.

Leave your comment

In reply to Some User
Building Automation Days 2025 in Bogota marks a milestone for the KNX standard in Latin America

Building Automation Days 2025 in Bogota marks a milestone for the KNX standard in Latin America

Colombia. With more than a hundred attendees and the participation of six high-profile exhibitors, Building Automation Days by KNX LATAM, Colombia edition, established itself as the most relevant...

Design Envelope Technology Hits 750 gpm Fire Pump Segment

Design Envelope Technology Hits 750 gpm Fire Pump Segment

Canada. In response to the growing demands of the fire protection industry, Armstrong Fluid Technology announced the expansion of its Vertical-In-Line pump line with the addition of the new 5x4x10PF...

Greenheck Launches New RV-220 Model and Expands Its Line of Dedicated Outdoor Air Systems

Greenheck Launches New RV-220 Model and Expands Its Line of Dedicated Outdoor Air Systems

United States. Greenheck announced the addition of the RV-220 to its line of dedicated outdoor air systems (DOAS), a solution that responds to the growing demand for equipment with greater outdoor...

Embraco enters the HVAC market with new scroll compressors and aims to become a full-service supplier

Embraco enters the HVAC market with new scroll compressors and aims to become a full-service supplier

Brazil. Embraco announced its official entry into the heating, ventilation and air conditioning (HVAC) market following the acquisition of the specialized company Xecom, and the launch of a new line...

SIGMAN GROUP and Carrier-VRF reinforce technical training in the HVAC sector in Ecuador

SIGMAN GROUP and Carrier-VRF reinforce technical training in the HVAC sector in Ecuador

Ecuador. An intensive week of technical and commercial training brought together key players in the HVAC sector in Quito and Guayaquil, thanks to the joint initiative of GRUPO SIGMAN and...

AHR Expo Mexico 2025 returns to Monterrey with its most ambitious edition yet

AHR Expo Mexico 2025 returns to Monterrey with its most ambitious edition yet

Mexico. The event returns this year to Monterrey with an unprecedented edition. The exhibition, dedicated to air conditioning, ventilation, heating, refrigeration and filtration solutions, promises...

Fujitsu Launches New AIRSTAGE Multi-Position Air Handler with R-32 Refrigerant

Fujitsu Launches New AIRSTAGE Multi-Position Air Handler with R-32 Refrigerant

United States. Fujitsu General America announced the launch of its new AIRSTAGE Multi-Position Air Handling Unit (MPAHU), designed to provide greater application flexibility by easily...

HVAC project at the Javeriana University, finalist in the CALA Awards 2025 in the HVAC category

HVAC project at the Javeriana University, finalist in the CALA Awards 2025 in the HVAC category

The HVAC system installed in the building of the Faculty of Sciences of the Pontificia Universidad Javeriana, in Bogotá, was selected as a finalist in the HVAC category of the CALA Awards 2025. The...

Concord Project in La Lima Free Trade Zone, finalist in the HVAC category of the CALA Awards 2025

Concord Project in La Lima Free Trade Zone, finalist in the HVAC category of the CALA Awards 2025

The HVAC system project carried out by MultiFRIO for the company Concord in the La Lima Free Trade Zone, in Cartago, received the final prize in the HVAC category of the CALA Awards 2025, a...

HVAC project at the Universidad Santiago de Cali, finalist in the CALA AWARDS HVAC category

HVAC project at the Universidad Santiago de Cali, finalist in the CALA AWARDS HVAC category

The air conditioning project of the Auditorium Building and the Technology Center of the new campus of the Santiago de Cali University was chosen as a finalist in the HVAC category of the CALA...

Free Subscription
Remember Me
SUBSCRIBE TO OUR NEWSLETTER
DO YOU NEED A SERVICE OR PRODUCT QUOTE?
LASTEST INTERVIEWS
SITE SPONSORS










LASTEST NEWSLETTER
Ultimo Info-Boletin