Please wait, authorizing ...

Don't have an account? Register here today.


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.

- 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:

* 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
Author: Duván Chaverra Agudelo
Jefe Editorial en Latin Press, Inc,.
Comunicador Social y Periodista con experiencia de más de 16 años en medios de comunicación. Apasionado por la tecnología y por esta industria.

No thoughts on “Example of a project with hot and cold cooler”

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 Your email will not be published.

Leave your comment

In reply to Some User
Free Subscription

Bienvenida a Air Conditioning for Hospitals Summit

Sesión 5: Desinfección en ambientes críticos bajo recomendaciones de ASHRAE

Esta charla estará enfocada en las recomendaciones de ASHARAE para la desinfección de ambientes críticos como lo son quirófanos o salas de hospitales, garantizando una ventilación adecuada para reducir el riesgo de infección. Nos enfocaremos en los productos que Carrier ha lanzado al mercado para cubrir esta necesidad inmediata. Ing.William Sanchez - Grupo Clima

Sesión 4: Minimizando las Infecciones Asociadas a la Atención de la Salud (IAAS)

Como se pueden minimizar las Infecciones Asociadas a la Atención de la Salud (IAAS) al proveer el flujo de aire y la presurización adecuada en los ambientes críticos. Roberto Rouanet, Business Developer Building Products - Siemens Colombia

Sesión 3: Hospitales: Salas de Presión Positiva y Negativa

Los centros hospitalarios tienen requerimientos de salas o zonas de presión positiva y negativa con el objetivo de proteger a sus pacientes, trabajadores y usuarios de las áreas de infecciosos (salas de presión negativa) o inmunodeprimidos (salas de presión positiva). Estos espacios aislados por diferencias de presión se consiguen a través de los sistemas de control de los equipos de climatización de las instalaciones. Estas salas de presión Negativa o Positiva son una parte imprescindible en centros médicos y de investigación, ya que ayudan a mantener las condiciones sanitarias necesarias para un ambiente limpio. Jose Jesús Arboledas Herranz, Responsable de proyectos especiales - KEYTER

Sesión 1: Panel - Buenas prácticas, normativas y errores en climatización para hospitales

Buenas prácticas, normativas y errores más comunes en los proyectos de climatización para hospitales Analizar cuáles son los temas en los que los ingenieros y técnicos deben capacitarse profundamente para desarrollar proyectos en esta clase de verticales que demandan instalaciones funcionales al 100% Roberto D'Anetra, Gerente - Climatiza Rómulo Laureano, Commercial Sales Manager - RGF-BIOCONTROLS Jose Jesús Arboledas Herranz, Responsable de proyectos especiales - KEYTER Roberto Rouanet, Business Developer Building Products - Siemens Colombia
Load more...

Ultimo Info-Boletin