Sensgreen Knowledge Base

Temperature

Importance of Temperature Monitoring

Monitoring indoor air temperature is vital for many reasons, comfort, mold & bacteria, and energy efficiency. By monitoring the indoor air quality, we can see historic and current data of the indoor environment, current and projected outside weather, building, and HVAC equipment specifications to optimize indoor air quality and temperature management while considering energy consumption of the building.

WHO's temp chart showing minimal risk temerature for heat realted health effects

Table: Examples of estimated minimal risk temperature for heat-related health effects and maximum acceptable temperature. WHO Housing and health guidelines. World Health Organization. 2018. pp. 48. ISBN 978-92-4-155037-6.

Safe Range of Temperature

WHO’s (World Health Organization) 2018 guidelines recommend 18°C (64°F) minimum as a safe temperature for healthy people while this minimum can increase depending on the age and healthiness or vulnerability of the occupants and, the minimum risk range of the temperature is stated as between 21-30°C (70-86°F) ¹

Effects of Temperature In Workplaces and Performance

The human body requires a specific range of temperature to maintain itself. In the buildings, occupants, in most of the cases, occupants are being the employees and workers, need to do their jobs and finish their tasks. Unregulated temperatures in office buildings can cause loss of concentration, decreased productivity, and increased absenteeism. 

According to a research made in 2015, 80% of the office workers are complaining about the temperature at the offices. Also, during summer, 50% of the offices are considered hot, and in winter, 52% are considered too cold. Fixing the problems with temperature will contribute to the overall performance of the company directly. ²

In another research conducted by the Helsinki University of Technology, it's been found that between 21-22 °C (69.8-71.6 °F) the productivity of the office workers increased visibly. The number of typos made by the workers decreased by 44% and the typing output increased by 150%. ³

image of a sprout showing productivity

Increased productivity

image of a target board showing concentration

Increased concentration

image of two human figure with a plus sign on top showing decreased absenteeism

Decreased absenteeism

hand figure with red dots on it showing allergy

Allergic symptoms

head figure with a red dot on the throat area showing asthma

Asthma

head figure coughing showing Respiratory infections

Respiratory infections

three red dots on a corner showing Mold growth

Mold growth

Temperature-Mold Connection

Another reason for monitoring indoor air temperature is the mold growth in buildings. It is a fungal growth and molds might cause both aesthetical problems on buildings and many health problems for people. For example, respiratory infections, an increase in allergic symptoms, and asthma. According to CDC (Centers for Disease Control and Prevention), mold exposure does not always cause these problems; mold exposure does not always cause these problems; however, most people are sensitive to mold.⁴

Mold usually grows best between 25 to 30 °C (77-86 °F) and requires humidity and wet conditions. That’s why temperature and humidity have to be monitored all the time to decrease the risk of mold growth on-premises to a minimum and prevent it before it becomes another problem to deal with.

 

Effects of Temperature On Energy Savings

Temperature is the most important parameter to control for saving energy while providing comfortable environments for building occupants. Without reducing satisfaction levels, by increasing the cooling setpoint of 22.2 °C (72 °F) to 25 °C (77 °F), an average of 29% of cooling energy and 27% total HVAC energy savings can be achieved. Reducing the heating setpoint of 21.1 °C (70 °F) to 20 °C (68 °F) saves an average of 34% of terminal heating energy. ⁵

Temperature level requirements are too dynamic in buildings during the day. There are many different factors like outdoor weather, building facade, occupancy levels, air quality, etc. that affect required temperature levels in the building. Temperature management strategy that considers all of those factors can provide energy savings of up to 40%. ⁶ However, following all of those factors dynamically during the day can be challenging.  Sensgreen's monitoring solutions help you to optimize the HVAC systems and save energy by tracking outdoor temperature levels and projections, temperature abnormalities in different rooms, and considering different building-related parameters (Building facade,  Building architecture, HVAC system specifications, …) continuously with the power of AI analytics.

HVAC systems have to be managed properly and regularly maintained to prevent wasting energy. In order to find and spot the problems, measurement of the parameters is crucial. Just by optimizing these systems and measuring regularly, savings can be increased between 20%-50%. ⁷

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